1,721,734 research outputs found

    Chapter 1 - Overview of Micro-Manufacturing

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    This chapter discusses manufacturing, as a general term referring to industry, is to make products that have been designed for certain application. Manufacturing has been influenced not only by the increased demands on producing routine products and creating new products but also by social, economic and even political changes. There are ever increasing demands on miniaturized/micro products/systems and components, e.g. MEMS (micro-electric-mechanical systems) and micro-systems, micro-reactors, fuel cells, micro-mechanical devices, and micro-medical components, which are now popularly used in vehicles, aircraft, telecommunication and IT facilities, home appliances, medical devices and implants. Micro-manufacturing concerns manufacturing methods, technologies, equipment, organizational strategies, and systems for the manufacture of products and/or features that have at least two dimensions that are within sub-millimeter ranges. Micro-manufacturing engineering is a general term which concerns a series of relevant activities within the chain of manufacturing micro-products/features, including design, analysis, materials, processes, tools, machinery, operational management methods, and systems

    AMIP and AMIP-P4K simulation dataset with Park-RH and Gauss-PDF cloud scheme

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    This dataset includes AMIP and AMIP-P4K simulations using Park-RH and Gauss-PDF cloud schemes, respectively.  Park-RH cloud scheme is the default cloud macrophysical scheme in NCAR CAM5.  Gauss-PDF cloud scheme is a statistical cloud scheme, developed by Qin et al. (2018).  All simulations are AMIP-type simulations from 1979 to 1988. The monthly output is archived here.  Details of the model setup and the difference of two cloud schemes could be found in its related submitted manuscript. </p

    Data for Synergistic Uptake by Acidic Sulfate Particles of Gaseous Mixtures of Glyoxal and Pinanediol

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    The data here can be referred to the figures and tables in the pape

    Replication Data for: Humidity dependence of the condensational growth rates of α-pinene secondary organic aerosol particles

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    Text tab-delimited files of area-diameter distributions of the chamber experiment and the MOSAIC simulation

    Replication Data for: Temperature-dependent viscosity of organic materials characterized by atomic force microscope

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    The data include ASCII tab-delimited files of the resonant frequency responses of the AFM cantilever in the sucrose, and dioctyl phthalate, and the temperature-dependent viscosities of the sucrose, and dioctyl phthalat

    Replication Data for: Assessing the nonlinear effect of atmospheric variables on organic aerosol particle concentration using machine learning method

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    ASCII tab-delimited files of traffic-POA, cooking-POA, SOA concentration, NOx and O3, wind speed, wind direction, temperature, and relative humidity

    Multiscale modelling of hybrid machining processes

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    The fundamentals of multiscale modeling, e.g., its concept, definition and categories, are reviewed and summarized in this chapter. Different multiscale modeling approaches or techniques, such as sequential multiscale modeling and concurrent multiscale modeling are introduced. Then, the modeling for assisted hybrid machining processes, especially for the laser-assisted machining (LAM), are illustrated. A case study for the modeling of LAM is also analyzed and discussed in detail. The chapter concludes with the future possibility and prospect of making use of multiscale modeling techniques to facilitate investigation into the hybrid machining processes or process chain

    Survey on the Overwintering of Syrphids in Changbai Mountains and Experiments on Artificial Protection of the Overwintering Syrphid Flies

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    Originating text in Chinese.Citation: Gao, Junfeng, Zhang, Guangxin, Qin, Yongchun, Yu, Kai, Li, Minghai, Qin, Yi. (1993). Survey on the Overwintering of Syrphids in Changbai Mountains and Experiments on Artificial Protection of the Overwintering Syrphid Flies. Chinese Journal of Biological Control, 9(3), 142-144

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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